Sole



FIG. 1 is a rear, left-hand side, top, perspective view of a sole comprising a new, original and ornamental design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right-hand side view thereof;

FIG. 5 is a left-hand side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Portions shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a sole, substantially as shown and described. 